Review • iPhone XS review, updated: A few luxury upgrades over the XR Share your voice Sarah Tew/CNET An Echo Dot makes a fine match for any Fire edition TV, because you can use the latter to say things like, “Alexa, turn on the TV.” Right now, the 24-inch Insignia Fire TV Edition starts at just $100, while the 32-inch Toshiba Fire TV Editions is on sale for $130. Just add any Fire TV Edition to your cart, then add a third-gen Echo Dot, and presto: The latter is free. Formerly known as the Google Home Hub, Google’s Nest Hub packs a wealth of Google Assistant goodness into a 7-inch screen. At $59, this is within a buck of the best price we’ve seen. It lists for $129 and sells elsewhere in the $89-to-$99 range.This is one item of many available as part of eBay’s Labor Day Sale (which, at this writing, doesn’t specifically mention Labor Day, but that’s how it was pitched to us). TVs Speakers Mobile Accessories Cameras Laptops Automobiles Smart Speakers & Displays Angela Lang/CNET Preview • iPhone XS is the new $1,000 iPhone X HP Laptop 15t Value: $520 (save $780) Tags Sprint The problem with most entry-level laptops: They come with mechanical hard drives. That makes for a mighty slow Windows experience. This Lenovo model features a 128GB solid-state drive, so it should be pretty quick to boot and load software, even with its basic processor. Plus, it has a DVD-burner! That’s not something you see in many modern laptops, especially at this price. $6 at Tidal Lenovo Smart Clock: $59.99 (save $20) Tidal 3-month family subscription: $5.99 (save $54) Read the AirPods review Other Labor Day sales you should check out Best Buy: In addition to some pretty solid MacBook deals that have been running for about a week already, Best Buy is offering up to 40% off major appliances like washers, dryers and stoves. There are also gift cards available with the purchase of select appliances. See it at Best BuyDell: Through Aug. 28, Dell is offering an extra 12% off various laptops, desktops and electronics. And check back starting Aug. 29 for a big batch of Labor Day doorbusters. See it at DellGlassesUSA: Aug. 29 – Sept. 3 only, you can save 65% on all frames with promo code labor65. See it at GlassesUSALenovo: The tech company is offering a large assortment of deals and doorbusters through Labor Day, with the promise of up to 56% off certain items — including, at this writing, the IdeaPad 730S laptop for $700 (save $300).See it at LenovoLensabl: Want to keep the frames you already love and paid for? Lensabl lets you mail them in for new lenses, based on your prescription. From now through Sept. 2 only, you can save 20% on the blue light-blocking lens option with promo code BLOCKBLUE. See it at LensablSears: Between now and Sept. 7, you can save up to 40% on appliances (plus an additional 10% if you shop online), up to 60% on mattresses, up to 50% on Craftsman products and more. The store is also offering some fairly hefty cashback bonuses. See it at SearsNote: This post was published previously and is continuously updated with new information.CNET’s Cheapskate scours the web for great deals on tech products and much more. For the latest deals and updates, follow the Cheapskate on Facebook and Twitter. Questions about the Cheapskate blog? Find the answers on our FAQ page, and find more great buys on the CNET Deals page. $999 15 Photos Recently updated to include digital-photo-frame capabilities, the Lenovo Smart Clock brings Google Assistant goodness to your nightstand. It’s a little smaller than the Amazon Echo Show 5, but also a full $30 less (and tied with Prime Day pricing) during this Best Buy Labor Day sale. DJI Osmo Action camera: $261 (save $89) Share your voice 2:02 Best Buy See it Spotify and most other streaming services rely on compressed audio, which robs the listener of full fidelity. Enter Tidal, the only “major” service that delivers lossless audio — meaning at least on par with CD quality, if not better. Want to see (er, hear) the difference for yourself? Grab this excellent extended trial while you can. It’s just $6 for three months, and it’s good for up to six listeners. Read Google Home Hub review See at Turo CNET may get a commission from retail offers. Amazon Lenovo 130-15AST 15.6-inch laptop: $210 (save $90) Rocket League comes to life with Hot Wheels at Toy Fair… See It See at Amazon $520 at HP Google Nest Hub: $59 (save $70) 0 Sarah Tew/CNET $59 at eBay Video Games,I’m shocked — shocked! — to learn that stores are turning Labor Day into an excuse to sell stuff. Wait — no, I’m not. As much as I respect the original intent of the holiday (which became official back in 1894), to most of us, it’s just a bonus day off — one that’s blissfully tacked onto a weekend. So, yeah, stores; go ahead, run your sales. I’m listening. Perhaps unsurprisingly, Labor Day doesn’t bring out bargains to compete with the likes of Black Friday (which will be here before you know it), but there are definitely some sales worth your time.For example:We’ve rounded up the best Labor Day mattress deals.We’ve also gathered the best Labor Day laptop deals at Best Buy.The 2019 Vizio P Series Quantum is back under $999.Be sure to check out Amazon’s roughly three dozen Labor Day deals on TVs and audio. Google Express is having a big sale as well, one that includes deals on game consoles, AirPods, iPhones, laptops and more.Below I’ve rounded up a handful of individual items I consider to be the cream of the crop, followed by a handy reference guide to other Labor Day sales. Keep in mind, of course, that products may sell out at any time, even if the sale itself is still running. Note that CNET may get a share of revenue from the sale of the products featured on this page. Sarah Tew/CNET Though not technically a Labor Day sale, it’s happening during Labor Day sale season — and it’s too good not to share. Nationwide Distributors, via Google Express, has just about the best AirPods deal we’ve seen (when you apply promo code ZBEDWZ at checkout). This is for the second-gen AirPods with the wireless charging case. Can’t imagine these will last long at this price, so if you’re interested, act fast. $155 at Google Express What’s cooler: A snapshot of a firework exploding in front of you, or full 360-degree video of all the fireworks and all the reactions to seeing them? Oooh, ahhh, indeed. At $250, the compact Rylo dual-lens camera is selling for its lowest price yet. And for an extra $50, you can get the bundle that includes the waterproof housing.This deal runs through Sept. 3; it usually costs $500. Free Echo Dot with an Insignia or Toshiba TV (save $50) $299 at Amazon 7 Nintendo Rocket League, the popular game where battling cars play soccer against each other, is now fully cross-platform, including compatibility with the PlayStation 4.Psyonix made the announcement in a post on its website Monday along with Psyonix Vice President of Publishing Jeremy Dunham announcing the news on the PlayStation blog. Rocket League is also available on Steam, Xbox One, Nintendo Switch, PC and Mac.Psyonix said that players who would like to play cross-platform with their friends should select “Play” from the game’s menu, then “Private Match” and either “Create” or “Join Private Match.” A full cross-platform party system is also in the works for later this year. Rylo 5.8K 360 Video Camera: $250 (save $250) $60 at Best Buy See It DJI’s answer to GoPro’s action cameras is rugged little model that’s shockproof, dustproof and waterproof down to 11 meters. It normally runs $350, but this deal drops it to $261 when you apply promo code 19LABOR10 at checkout. $210 at Best Buy Now playing: Watch this: Apple AirPods with Wireless Charging Case: $155 (save $45) Turo is kind of like Uber meets Airbnb: You borrow someone’s car, but you do all the driving. I’ve used it many times and found it a great alternative to traditional car-rental services — in part because you get to choose exactly the vehicle you want (not just, say, “midsize”) and in part because you can often do pickup and dropoff right outside baggage claim.Between now and Sept. 1, the first 300 people to check out can get $30 off any Turo rental with promo code LDW30. Tags Best laptops for college students: We’ve got an affordable laptop for every student. Best live TV streaming services: Ditch your cable company but keep the live channels and DVR. Turo $999 I thought this might be a mistake, but, no, the weirdly named HP Laptop 15t Value is indeed quite the value at this price. Specs include an Intel Core i7 processor, 12GB of RAM, a 256GB solid-state drive and a 15.6-inch display. However, I strongly recommend paying an extra $50 to upgrade that display to FHD (1,920×1,080), because you’re not likely to be happy with the native 1,366×768 resolution. Apple iPhone XS Mentioned Above Apple iPhone XS (64GB, space gray) See It The Cheapskate Turo: Save $30 on any car rental Chris Monroe/CNET $261 at Daily Steals via Google Express Sarah Tew/CNET Read Lenovo Smart Clock review Boost Mobile CES 2019: The tech changing the way we play video games Read the Rylo camera preview $999 Read DJI Osmo Action preview Rylo $90 at Daily Steals via Google Express Comments Post a comment $999 JBL Soundgear wearable speaker: $90 (save $160) Use promo code 19LABOR10 to get an unusually good deal on JBL’s interesting hybrid product — not quite headphones, and not quite a traditional speaker, but something you wear like neckphones to listen to music on the go.
The authors looked at a set of what they call “18,520 ultrafast black swan events” that they uncovered in stock-price movements between 2006 and 2011. A case in point is what occurred on May 6, 2010, when it took just minutes for a spontaneous mix of interactions in cyberspace to generate the Flash Crash, first a plunge, in minutes, and soon after a recovery.The speed in which the rises and falls occur might last no longer than half a second, unapparent to any human who is tracking prices. Johnson says if you blink you miss it. Flash events may happen in milliseconds and have nothing to do with a company’s real value.To examine such incidences and their frequency the authors of the study waded through price logs from over 60 markets collected by Nanex, a Chicago company that sells streaming market data. The data revealed that the ultrafast fracture events were not infrequent but common, totaling 18,520 in the 2006 to 2010 time span. The authors looked for extreme changes in a stock price, which they defined as a change greater than 0.8 per cent, over timescales shorter than 1.5 seconds.The speed in which ultrafast events happen is of concern as human oversight becomes impossible if trades are taking place faster than humans can react. Machine trading today carries computerized trading algorithms that make automated trades in milliseconds and make some experts uncomfortable, in the fear that out-of-control algorithms can cause a crash. Following the May 2010 event, U.S. regulators, as a safety mechanism, upheld circuit breakers designed to stop trading if a stock price makes a sudden large move. Whether or not that is the best solution around, considering the speed in which today’s machine trading can occur, does not convince all market experts. At that level of resolution, one of the study authors said it was troublesome to even observe, leave alone regulate. The authors suggest an early warning system for when the markets are becoming unstable. According to a Wired report, the authors would like to see an approach that might help steer automated markets by introducing “rogue algorithms when herd behaviors appear imminent.”In a recent Q&A interview, Johnson said the “fracture” analogy to real materials is useful in assessing today’s financial markets. “Where we want to head to is the analogy of a trained aircraft engineer, who can pretty much look at the microscopic arrangement of small fractures in an aircraft and judge whether it is safe to continue flying that plane or not. To have this for markets would be an incredibly important step toward understanding, and managing, risk.” More information: Financial black swans driven by ultrafast machine ecology, by Neil Johnson, Guannan Zhao, Eric Hunsader, Jing Meng, Amith Ravindar, Spencer Carran, Brian Tivnan, arXiv:1202.1448v1 [physics.soc-ph] arxiv.org/abs/1202.1448AbstractSociety’s drive toward ever faster socio-technical systems, means that there is an urgent need to understand the threat from ‘black swan’ extreme events that might emerge. On 6 May 2010, it took just five minutes for a spontaneous mix of human and machine interactions in the global trading cyberspace to generate an unprecedented system-wide Flash Crash. However, little is known about what lies ahead in the crucial sub-second regime where humans become unable to respond or intervene sufficiently quickly. Here we analyze a set of 18,520 ultrafast black swan events that we have uncovered in stock-price movements between 2006 and 2011. We provide empirical evidence for, and an accompanying theory of, an abrupt system-wide transition from a mixed human-machine phase to a new all-machine phase characterized by frequent black swan events with ultrafast durations (<650ms for crashes, <950ms for spikes). Our theory quantifies the systemic fluctuations in these two distinct phases in terms of the diversity of the system's internal ecology and the amount of global information being processed. Our finding that the ten most susceptible entities are major international banks, hints at a hidden relationship between these ultrafast 'fractures' and the slow 'breaking' of the global financial system post-2006. More generally, our work provides tools to help predict and mitigate the systemic risk developing in any complex socio-technical system that attempts to operate at, or beyond, the limits of human response times. (PhysOrg.com) -- In the United States, ultrafast trading in financial markets between 2006 and 2011 was the underlying factor for over 18,000 extreme price changes, according to a new study. Neil Johnson, a professor in the physics department of the University of Miami in Coral Gables, one of the authors of the study, thinks that a buildup of such "fractures" can destabilize the market. This study, “Financial Black Swans Driven by Ultrafast Machine Ecology” was submitted to arXiv earlier this month, suggesting the link between extreme-change fractures and market crashes. Citation: Study links ultrafast machine trading with risk of crash (2012, February 19) retrieved 18 August 2019 from https://phys.org/news/2012-02-links-ultrafast-machine.html US imposes new rules on high-speed traders Crash event. Stock symbol is ABK. Date is 11/04/2009. Number of sequential down ticks is 20. Price change is -0.22. Duration is 25ms (i.e. 0.025 seconds). Percentage price change downwards is 14% (i.e. crash magnitude is 14%). Image: arXiv:1202.1448v1 © 2011 PhysOrg.com Explore further This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.